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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 import "dart:mirrors"; | 5 import "dart:mirrors"; |
| 6 | 6 |
| 7 import "package:expect/expect.dart"; | 7 import "package:expect/expect.dart"; |
| 8 | 8 |
| 9 class MultiArityFunction implements Function { | 9 class MultiArityFunction implements Function { |
| 10 noSuchMethod(Invocation msg) { | 10 noSuchMethod(Invocation msg) { |
| 11 if (msg.memberName != #call) return super.noSuchMethod(msg); | 11 if (msg.memberName != #call) return super.noSuchMethod(msg); |
| 12 return msg.positionalArguments.join(","); | 12 return msg.positionalArguments.join(","); |
| 13 } | 13 } |
| 14 } | 14 } |
| 15 | 15 |
| 16 main() { | 16 main() { |
| 17 var f = new MultiArityFunction(); | 17 var f = new MultiArityFunction(); |
| 18 | 18 |
| 19 Expect.isTrue(f is Function); | 19 Expect.isTrue(f is Function); |
| 20 Expect.equals('a', f('a')); | 20 Expect.equals('a', f('a')); |
| 21 Expect.equals('a,b', f('a', 'b')); | 21 Expect.equals('a,b', f('a', 'b')); |
| 22 Expect.equals('a,b,c', f('a', 'b', 'c')); | 22 Expect.equals('a,b,c', f('a', 'b', 'c')); |
| 23 Expect.equals('a', Function.apply(f, ['a'])); | 23 Expect.equals('a', Function.apply(f, ['a'])); |
| 24 Expect.equals('a,b', Function.apply(f, ['a', 'b'])); | 24 Expect.equals('a,b', Function.apply(f, ['a', 'b'])); |
| 25 Expect.equals('a,b,c', Function.apply(f, ['a', 'b', 'c'])); | 25 Expect.equals('a,b,c', Function.apply(f, ['a', 'b', 'c'])); |
| 26 Expect.throws(() => f.foo('a', 'b', 'c'), | 26 Expect.throws(() => f.foo('a', 'b', 'c'), (e) => e is NoSuchMethodError); |
| 27 (e) => e is NoSuchMethodError); | |
| 28 | 27 |
| 29 ClosureMirror cm = reflect(f); | 28 ClosureMirror cm = reflect(f); |
| 30 Expect.isTrue(cm is ClosureMirror); | 29 Expect.isTrue(cm is ClosureMirror); |
| 31 Expect.equals('a', cm.apply(['a']).reflectee); | 30 Expect.equals('a', cm.apply(['a']).reflectee); |
| 32 Expect.equals('a,b', cm.apply(['a', 'b']).reflectee); | 31 Expect.equals('a,b', cm.apply(['a', 'b']).reflectee); |
| 33 Expect.equals('a,b,c', cm.apply(['a', 'b', 'c']).reflectee); | 32 Expect.equals('a,b,c', cm.apply(['a', 'b', 'c']).reflectee); |
| 34 | 33 |
| 35 MethodMirror mm = cm.function; | 34 MethodMirror mm = cm.function; |
| 36 Expect.isNull(mm); | 35 Expect.isNull(mm); |
| 37 | 36 |
| 38 ClassMirror km = cm.type; | 37 ClassMirror km = cm.type; |
| 39 Expect.equals(reflectClass(MultiArityFunction), km); | 38 Expect.equals(reflectClass(MultiArityFunction), km); |
| 40 } | 39 } |
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